AT516092A1 - Apparatus and method for transporting tubular bag bodies - Google Patents

Abstract

Device (1) and method for transporting tubular bag bodies (2), having a longitudinal transport device (3) with which the tubular bag bodies (2) can be transported substantially in the direction (3 ') of their longitudinal extension, with a transverse transport device (8), with which the tubular bag bodies (2) can be transported substantially perpendicular to their longitudinal extent, and with a transfer device (9) for transferring the tubular bag bodies (2) from the longitudinal transport device (3) to the transverse transport device (8), wherein the transfer device (9 ) has at least one upper support surface (10) and a lower support surface (11) for the tubular bag body (2), wherein a switchable between an upper position and a lower position switch element (12) is provided, wherein the tubular bag body (2) in the upper position of the switch element (12) of the upper support surface (10) and in d he lower position of the switch element (12) of the lower support surface (11) can be fed.

Description

The invention relates to a device for transporting tubular bag bodies, comprising a longitudinal transport device, with which the tubular bag bodies can be transported substantially in the direction of their longitudinal extent, with a transverse transport device, with which the tubular bag bodies can be transported substantially perpendicular to their longitudinal extension, and with a Transfer device for transferring the tubular bag body from the longitudinal transport device to the transverse transport device, wherein the transfer device has a support surface for supporting the tubular bag body.

Furthermore, the invention relates to a method for transporting tubular bag bodies, wherein the tubular bag body initially transported substantially in the direction of its longitudinal extent and fed to a support surface, wherein the tubular bag body are transported substantially perpendicular to the longitudinal extent of the support surface.

Such transport devices or transport methods have been known for a long time in the prior art and are widely used in systems for producing sacks, in particular fabric hoses. It is usually assumed that a material web from which the tubular bag body, in particular with a cross-cutting device, are isolated. Thereafter, the bag bodies are transported further in the transverse direction to the subsequent

Manufacturing steps to get access to the open end portions of the bag body. For this purpose, various transfer devices have been proposed in the prior art, with which the change of direction during transport of the tubular bag body is accomplished.

From DE 10 2009 000 893 Al, such a device for changing the transport direction of flat tube pieces is known. The pieces of tubing are pushed one after the other in the longitudinal direction onto a bearing surface in order subsequently to be taken along by a transfer device in the transverse direction.

Before a piece of hose can be transported away in the transverse direction, the hose piece in this prior art must first rest with its side area on the transverse transport plane, so that the side area can be detected by the transfer device. When pushing out the hose piece on the support surface, it is therefore necessary that it is already partially arranged in the region of the transverse transport plane, so that the hose piece rests on this level already shortly before its takeover. Due to the design of the transport table comprises in this prior art Störkanten, against which the bag could be pushed. As a result, the bag is compressed, possibly even damaged and a subsequent, proper onward transport of the bag is difficult. In order to avoid such collisions, DE 10 2009 000 893 A1 provides, in one embodiment, for the support surface of the transfer device to be subdivided into a fixed part and a height-adjustable part. The height-adjustable part is designed plate-like and articulated via a rotation axis to the fixed part. The axis of rotation runs in the feed direction of the hose. With the aid of a reciprocating cylinder, the height-adjustable region can now be pivoted about the axis of rotation so that the side edge of the hose section projecting laterally beyond the height-adjustable region does not run against an interfering edge of the transverse transport plane.

Moreover, DE 10 2009 000 893 describes that a following flat workpiece can be advanced by a certain distance in the longitudinal direction, while the preceding workpiece is transported in the transverse direction by a distance which is smaller than the workpiece width. For this purpose, a pusher element is provided, with which the end of the flat tube piece in a region below the plane on which the end initially rests, can be pressed. This area can be a free space at the side or below the support level. The pusher element may comprise a pneumatic piston cylinder, with which a pusher finger or a pusher bar is movable. The pusher finger or the pusher bar then come into contact with it in an area of the hose piece, this area not resting on the level. If the pusher element is moved, the end of the hose piece thus flips off and slides along a side surface of the support element comprising the support plane until the end reaches the free space and aligns itself again due to restoring forces. However, this design is disadvantageously structurally complex and not always reliable.

Accordingly, the object of the present invention is to alleviate or eliminate the disadvantages of the prior art. The invention is therefore in particular the goal of making the transfer of the tubular bag body of the longitudinal transport device to the transverse transport device with structurally simple means and while avoiding operational failures so that the rate of the processed bag body is increased.

This object is achieved by a device according to claim 1 and a method according to claim 18. Preferred embodiments are specified in the dependent claims.

According to the invention, the transfer device has at least one upper support surface and a lower support surface for the tubular bag body, wherein a switchable between an upper position and a lower position switch element is provided, wherein the tubular bag body in the upper position of the switch element of the upper support surface and in the lower Position of the switch element of the lower support surface can be fed.

The tubular bag bodies are transported by means of the longitudinal transport device along a particular horizontal longitudinal transport plane to the transfer device, with which the tubular bag body of the transverse conveyor are supplied to perform a change of direction by substantially 90 °. As a result, the open end regions of the tubular bag bodies are arranged on the sides of the transverse transport device in order to gain access to the open end regions of the bag bodies in subsequent processing stations, for example a bottom opening device. The transfer device between the longitudinal and the transverse transport device according to the invention has an upper support surface and a lower support surface. The terms "top" and "below" refer to the

Operating position of the device. Accordingly, the tubular bag body can be performed in the operation of the device by switching the switch element alternatively to the upper or lower bearing surface. The transfer device preferably has a suitable driver element, for example a driver roller, with which the tubular bag body is transferred from the respective support surface to the transverse transport device. Thereafter, the tubular bag body are transported in the transverse transport direction. Due to the at least two receiving surfaces, it is advantageously possible to avoid delays when passing through the transfer device. According to the invention, successive bag bodies can be arranged in an overlapping manner over the bearing surfaces during transport. Accordingly, the tubular bag body can be pushed in the longitudinal transport direction on the one bearing surface, while a preceding bag body is transported away in the transverse transport direction of the other bearing surface. Advantageously, it is therefore not necessary to carry away the bag body entirely from the transfer device before the next bag body arrives at the transfer device. As a result, the number of processed per time bag body of the transfer device can be significantly increased. Compared to the prior art is advantageous that the increase in the throughput rate at the transfer device on the one hand is achieved with technically simple means and on the other hand, the separate bearing surfaces of the transfer device allows reliable operation of the device in which disturbances can be largely prevented. Of course, more than two bearing surfaces can be provided. In some applications, it is favorable if the transfer device has at least one middle bearing surface between the upper and the lower bearing surface.

To form the bearing surfaces plate-shaped support elements are preferably provided. Preferably, the bearing surfaces are arranged in horizontal planes. However, the bearing surfaces can also be tilted relative to the horizontal.

With regard to a space-saving, compact design, it is advantageous if the upper and the lower bearing surface of the transfer device are arranged one above the other. Preferably, essentially identical, in particular horizontal bearing surfaces are provided. Of course, more than two bearing surfaces, for example three or four bearing surfaces, can be arranged directly above one another.

In order to improve the capacity of the transport device, it is advantageous if the switch element is designed for the alternating supply of the tubular bag body to the upper and the lower bearing surface of the transfer device. Accordingly, the tubular bag body are alternately supplied to the upper and the lower bearing surface of the transfer device. If more than two bearing surfaces are provided, the tubular bag body are preferably divided in order on the individual bearing surfaces of the transfer device.

For pivoting the switch element between the upper position and the lower position, it is advantageous if the switch element is connected to a pivot drive. By actuating the pivot drive, the supply of the tubular bag body can be controlled to the upper and lower bearing surface. Preferably, the control of the pivot drive is adapted to supply the tubular bag body alternately the upper and the lower support surface.

In order to transport the tubular bag body to the upper and lower bearing surface, it is favorable if the pivot drive for pivoting the switch element about at least one parallel to the transport plane of the longitudinal transport device extending, substantially perpendicular to the longitudinal transport direction extending pivot axis is pivotable. Accordingly, the switch element can be tilted upwards about the at least one, in particular horizontal pivot axis, in order to guide the bag body arriving at the switch element to the upper bearing surface. On the other hand, the switch element can be tilted down to guide the arriving at the switch element bag body to the lower support surface.

In order to make the transport of the tubular bag body along the longitudinal transport device obstacle-free, it is advantageous if the switch element has an upper guide element and a lower guide element, wherein between the upper guide element and the lower guide element, a guide gap is formed for the passage of the tubular bag body. Accordingly, the tubular bag body are conveyed through the guide gap of the switch element, wherein the tubular bag body are guided depending on the position of the switch element to the upper support surface or the lower support surface.

Particularly preferred is an embodiment in which the upper guide element at least one upper finger element, preferably a plurality of perpendicular to the longitudinal transport direction spaced upper finger elements, and / or the lower guide element at least one lower finger element, preferably a plurality of perpendicular to the longitudinal direction of transport spaced lower finger elements. In the case of a plurality of finger elements, it is favorable if the upper finger elements and / or the lower finger elements are convertible together, in particular pivotable, between the upper position and the lower position.

According to an alternative embodiment, a plate element, in particular a guide plate, is provided as the upper and / or lower guide element, which is adjustable for transporting the tubular bag body in the direction of the upper or lower bearing surface between the upper and lower position.

In order to change the switch element for dividing the tubular bag body to the upper or lower support surface, it is advantageous if the upper guide element, in particular the upper finger elements, on an upper shaft member and / or the lower guide element, in particular the lower finger elements, on a lower Shaft element are stored. The shaft member is preferably coupled to the pivot drive to allow the changeover of the switch element between the upper and the lower position.

To transport the tubular bag body continuously and with high reliability to the respective support surface of the transfer device, it is advantageous if between the switch element and the upper support surface rising in the direction of transport upper conveying surface and / or that between the switch element and the lower support surface in Longitudinal transport direction sloping lower conveying surface is provided. Preferably, a substantially horizontal longitudinal transport plane is provided, to which the conveying surfaces connect to the bearing surfaces of the transfer device. The switch element is preferably arranged in the transition region between the longitudinal transport plane and the conveying surfaces.

For this purpose, it is advantageous if the upper conveying surface and / or the lower conveying surface are arranged at an obtuse angle to the longitudinal transport plane of the longitudinal transport device. As a result, the tubular bag body can be guided obliquely upward depending on the position of the switch element to the upper support surface or obliquely down to the lower support surface of the transfer device. The longitudinal transport plane is preferably arranged in the vertical direction substantially in the middle between the upper bearing surface and the lower bearing surface of the transfer device.

In order to allow the division of the film flow in the transition from the longitudinal transport plane to the conveying surfaces, according to a structurally simple embodiment, a wedge element for forming front portions of the upper and lower conveying surface between the switch element and the transfer device is provided, wherein the wedge member preferably between an upper position according to the lower position of the switch element and a lower position corresponding to an upper position of the switch element displaced, in particular pivotable. Preferably, therefore, the wedge element is arranged in the lower position when the switch element is arranged in the upper position, and vice versa. Advantageously, the guide path to the upper or lower bearing surface of the transfer device is released so reliably. In this preferred embodiment can be prevented in particular that the bag body with the wedge tip of the

Wedge element collide. Preferably, the switch element on the above-described guide elements, with which the bag body are promoted in particular alternately in the direction of the upper or lower bearing surface, wherein the wedge member is switched between the lower and upper position.

The feeding of the tubular bag body to the respective bearing surface of the transfer device is facilitated if an upper conveyor drive, in particular with at least one conveyor belt, for transporting the tubular bag body on the upper conveying surface between the switch element and the upper support surface and / or a lower conveyor drive, in particular at least one further conveyor belt, is provided for transporting the tubular bag body on the lower conveying surface between the switch element and the lower support surface of the transfer device.

For the removal of the tubular bag body from the transfer device, it is advantageous if the upper bearing surface and the lower bearing surface of the transfer device are connected via an upper and a lower merge portion with a common transverse transport plane of the transverse conveyor. Accordingly, the tubular bag body are guided by the bearing surfaces of the transfer device in the particular horizontal transport plane of the transverse conveyor. Preferably, the tubular bag bodies are alternately guided from the upper and the lower bearing surface along the merge sections to the common transverse transport plane of the transverse transport device. Preferably, further conveyor drives, in particular with conveyor belts, are provided for transporting the tubular bag bodies on the merging sections. The merge sections may be formed corresponding to the conveyor sections between the switch element and the transfer device. Preferably, a horizontal transverse transport plane is provided, which preferably coincides substantially with the common longitudinal transport plane.

Moreover, it is favorable in this embodiment, when the upper merge portion and / or the lower

Merge section are each arranged at an obtuse angle to the transport plane of the transverse conveyor. Accordingly, the upper merging section leads obliquely downwards, while the lower merging section leads obliquely upwards. The common transverse transport plane of the

Transverse transport device is preferably arranged in the vertical direction substantially in the middle between the upper support surface and the lower support surface of the transfer device.

As usual with sack manufacturing plants, it is advantageous if a separating device is provided for separating the tubular sack bodies. With the aid of the singulator, a tubular web of material can be made into individual tubular, i.e. open end areas forming, bag bodies are divided. The separating device is preferably arranged in the region of the longitudinal transport device. The material web and after its singulation - the tubular bag bodies are in the flat state, i. with stacked bag sections, transported by the longitudinal transport device.

As separating means, a cross-cutting device is preferably provided for cutting through a tubular material web transversely to the longitudinal transport direction. Such cross-cutting devices are known per se in the prior art. For example, a rotating knife roller can be provided, with which the material web is cut transversely to the longitudinal direction of transport.

As is usual with bag making systems, preferably an opening device is provided for forming a bottom opening between bag sections at the open end area of the tubular bag body. The opening device is preferably arranged in the region of the transverse transport device. In this case, the arriving in the flat state bag body are opened in the bottom area before the bag bottom in a, also known in the art,

Bodenlegestation is formed.

The inventive method is characterized in that the tubular bag body are supplied by switching a switch element of an upper support surface and a lower support surface, of which the tubular bag body are removed in the transverse transport direction substantially perpendicular to its longitudinal extent.

The advantages and technical effects of this method will become apparent from the foregoing to the transport device according to the invention.

Particularly favorable is an embodiment in which the tubular bag body are alternately fed to the upper support surface and the lower support surface. As a result, the throughput of the tubular bag body can be substantially increased by the transfer device.

The invention will be explained below with reference to a preferred embodiment, to which, however, it should not be limited. In the drawing show

1 and 2 are schematic sectional views of a device according to the invention for transporting tubular bag bodies, which are initially transported in the direction of their longitudinal extension, then alternately an upper support surface (see Fig .. 1) or a lower support surface (see Fig .. 2) supplied be and finally transported away in the direction perpendicular to its longitudinal extent; and

Fig. 3, 4 each schematically a perspective view of the apparatus of FIG. 1, 2, wherein the tubular bag body of the upper support surface is supplied.

In the figure, a device 1 for transporting tubular bag bodies 2 is shown. The device 1 comprises a longitudinal transport device 3, with which a tubular material web, in particular a fabric hose (not shown), in the flat state along a horizontal transport plane in the longitudinal transport direction 3 ', i. in the direction of its longitudinal extent, is transported. The material web forms a juxtaposition of bag bodies 2, which, as will be explained further below, are then separated. The longitudinal transport device 3 has a longitudinal drive, in particular in the form of tensioning or transport rollers, which are known in the prior art and therefore require no further explanation. In addition, the longitudinal transport device 3 is a

Singling device 5 associated with which from the material web, the tubular bag body 2 are formed. In the embodiment shown, a cross-cutting device for cutting the tubular material web transversely to the longitudinal transport direction 3 'is provided as a separating device 5, which has an upper roller element 6 with a knife element and a lower roller element 7 with a corresponding receiving opening. The roller elements 6, 7 are rotatably mounted in opposite directions, so that the material web is cut once for transversely to the longitudinal extent to separate the bag body 2 at each revolution. For tensioning the material web in the

Cross-cutting device is a tension roller 4 is provided. The tubular bag body 2 consist of two superimposed bag sections, each bag section can be constructed of several layers of different material. The tubular bag body 2 are then transported in the flat state in the longitudinal transport direction 3 ', wherein the open end portions of the tubular bag body 2 are arranged at the front and rear ends.

As can be seen from Fig. 3, 4, the device 1 also has a transverse transport device 8, with which the tubular bag body 2 in the transverse transport direction 8 ', i. substantially perpendicular to the longitudinal extent thereof, in order to be fed to a bottom opening device (not shown) for forming a bottom opening at the open end region of the tubular bag body 2. In addition, a transfer device 9 is provided for transferring the tubular bag body 2 from the (in Fig. 3, 4 only schematically apparent) longitudinal transport device 3 to the transverse conveyor 8.

As can be seen from FIGS. 3, 4, the transfer device 9 has an upper support surface 10 and a lower support surface 11 for the tubular sack bodies 2. Advantageously, delays in transporting the tubular bag body through the transfer device 9 can thus be largely prevented. As a result, a tubular bag body 2 can already be pushed onto the one bearing surface 10, 11, while the leading bag body 2 has not yet left the other bearing surface 11 or 10. In the embodiment shown, the upper 10 and the lower bearing surface 11 of the transfer device 9 are arranged one above the other in horizontal planes. The bearing surfaces 10, 11 are provided on the upper sides of plate-shaped support elements. Of course, more than the two bearing surfaces 10, 11 may be provided.

In order to alternately supply the tubular bag bodies 2 to the upper support surface 10 and the lower support surface 11, a switch element 12 is provided, which can be moved between an upper position (see Fig. 1) and a lower position (see Fig. 2). In the upper position of the switch element 12 shown in FIG. 1, the tubular bag body 2 of the upper support surface 10 and in the lower position of the switch element 12 of FIG. 2, the lower support surface 11 are supplied. According to FIGS. 1, 2, a plurality of bag bodies 2 are guided in succession to the upper 10 or lower bearing surface 11. However, it is preferably provided that the tubular bag bodies 2 are alternately fed to the upper 10 and the lower support surface 11. As a result, the number of processed bag body 2 can be significantly increased.

As can be seen from FIGS. 1, 2, the point element 12 is connected to a pivoting drive 13, with which the point element 12 can be pivoted about a pivot axis extending in the longitudinal transport plane of the longitudinal transport device 3 and extending substantially perpendicular to the longitudinal transport direction 3 '. In the embodiment shown, the switch element 12 has an upper guide element 14 and a lower guide element 15. Between the upper guide member 14 and the lower guide member 15, a guide gap 16 is formed, which allows passage of the tubular bag body 2 in the longitudinal transport direction 3 '. The upper guide element 14 has at least one upper finger element 14 '. Correspondingly, the lower guide element 15 has at least one lower finger element 15 '. Conveniently, a plurality of perpendicular to the longitudinal transport direction 3 'spaced upper finger elements 14' and a plurality of perpendicular to the longitudinal transport direction 3 'spaced lower finger elements 15' are provided which together in accordance with the upper position

Fig. 1 and the lower position shown in FIG. 2 are pivotable. For this purpose, the upper guide member 14 is mounted on an upper shaft member 17 and the lower guide member 15 on a lower shaft member 18, which parallel to the longitudinal transport plane of the longitudinal transport means 3 extending pivot axes for switching the switch element 12 have.

As is further apparent from FIGS. 1, 2, an upper conveying surface 19 rising in the longitudinal transport direction 3 'is provided between the switch element 12 and the upper bearing surface 10. Accordingly, between the switch element 12 and the lower support surface 11 in the longitudinal transport direction 3 'sloping lower conveying surface 20 is provided. The upper conveying surface 19 and the lower conveying surface 20 are each arranged at an obtuse angle to the longitudinal transport plane of the longitudinal transport device 3 ', which extends horizontally in the embodiment shown. To form front portions of the upper 19 and lower conveying surface 20 between the switch element 12 and the transfer device 9, a wedge element 21 is provided in the embodiment shown. For transporting the tubular bag body 2 on the upper conveyor surface 19 between the switch element 12 and the upper support surface 10, an upper conveyor drive 22 is provided, each having a conveyor belt 23 on both sides of the upper conveyor surface 19. In addition, a lower conveyor drive 24 for transporting the tubular bag body 2 on the lower conveying surface 20 between the switch element 12 and the lower support surface 11 of the transfer device 9 is provided. The lower conveyor drive 24 is formed according to the upper conveyor drive 22 with further conveyor belts 25 on both sides of the lower conveying surface 20. The support surfaces 10, 11 may be associated with appropriate funding to arrange the tubular bag body in a fully resting on the support surfaces 10, 11 deduction position.

By periodic changeover of the switch element 12, the tubular bag body 2 are divided alternately on the upper support surface 10 and the lower support surface 11 of the transfer device 9.

3, 4, the upper bearing surface 10 and the lower bearing surface 11 of the transfer device 9 are connected via an upper merging section 26 and a lower merging section 27 to a common, horizontal transverse transport plane of the transverse conveyor 8, which is connected to the (not shown). Opening means for forming a bottom opening between bag portions at the open end portion of the tubular bag body leads. The upper merging portion 26 and the lower merging portion 27 are formed corresponding to the upper conveying surface 19 and the lower conveying surface 20 between the switch element 12 and the transfer device 9. Accordingly, the merge sections 26, 27 are each arranged at an obtuse angle to the transverse transport plane of the transverse conveyor 8 to the tubular bag body 2 alternately obliquely downward from the upper support surface 10 and from the lower support surface 11 obliquely upward to the common transverse transport plane of the transverse conveyor 8 to lead.

3, 4, the transfer device 9 for each support surface 10, 11 a (only schematically apparent) driver element 28 in the form of driver rollers, with which the tubular bag body 2 of the respective support surface 10, 11 in the associated merge section 26, 27 are taken. In addition, the transfer device 9 for each bearing surface 10, 11, a hold-down element 29, which is adjustable for temporary clamping of the tubular bag body 2 between a release position and a clamping position. The hold-down element 29 is lowered onto the bag body 2 as soon as it has reached its withdrawal position.

Claims (19)

1. Apparatus (1) for transporting tubular bag bodies (2), with a longitudinal transport device (3), with which the tubular bag body (2) can be transported substantially in the direction (3 ') of its longitudinal extent, with a transverse transport device (8 ), with which the tubular bag body (2) are transported substantially perpendicular to the longitudinal extent, and with a transfer device (9) for transferring the tubular bag body (2) from the longitudinal transport device (3) to the transverse transport device (8), wherein the transfer device (9) has a support surface for supporting the tubular bag body (2), characterized in that the transfer device (9) has at least one upper support surface (10) and a lower support surface (11) for the tubular bag body (2), wherein an intermediate an upper position and a lower position switchable switch element (12) is provided, wherein the tubular bag body (2) in the upper position of the switch element (12) of the upper support surface (10) and in the lower position of the switch element (12) of the lower support surface (11) can be fed. 2. Device (1) according to claim 1, characterized in that the upper (10) and the lower support surface (11) of the transfer device (9) are arranged one above the other. 3. Device (1) according to claim 1 or 2, characterized in that the switch element (12) for alternating supply of the tubular bag body (2) to the upper (10) and the lower support surface (11) of the transfer device (9) is formed , 4. Device according to one of claims 1 to 3, characterized in that the switch element (12) is connected to a pivot drive (13) for pivoting the switch element (12) between the upper position and the lower position. 5. Device (1) according to claim 4, characterized in that the pivot drive (13) for pivoting the switch element (12) to at least one parallel to the transport plane of the longitudinal transport means (8) extending, substantially perpendicular to the longitudinal transport direction (3 ') extending pivot axis is pivotable. 6. Device (1) according to one of claims 1 to 5, characterized in that the switch element (12) has an upper guide element (14) and a lower guide element (15), wherein between the upper guide element (14) and the lower guide element (15) a guide gap (16) for the passage of the tubular bag body (2) is formed. 7. Device (1) according to claim 6, characterized in that the upper guide element (14) at least one upper finger element (14 '), preferably a plurality of perpendicular to the longitudinal transport direction (3') spaced upper finger elements (14 ') and / or the lower Guide element (15) at least one lower finger element (15 '), preferably a plurality of perpendicular to the longitudinal transport direction (3') spaced lower finger elements (15 ') having. 8. Device (1) according to claim 6 or 7, characterized in that the upper guide element (14), in particular the upper finger elements (14 '), on an upper shaft member (17) and / or the lower guide element (15), in particular the lower finger elements (15 ') are mounted on a lower shaft element (18). 9. Device (1) according to one of claims 1 to 8, characterized in that between the switch element (12) and the upper support surface (10) in the longitudinal transport direction (3 ') rising upper conveying surface (19) and / or that between the Switch element (12) and the lower support surface (11) in a longitudinal transport direction (3 ') sloping lower conveying surface (20) is provided. 10. Device (1) according to claim 9, characterized in that the upper conveying surface (19) and / or the lower conveying surface (20) are arranged at an obtuse angle to the longitudinal transport plane of the longitudinal transport device (3). 11. Device (1) according to claim 9 or 10, characterized in that a wedge element (21) for forming front portions of the upper (19) and lower conveying surface (20) between the switch element (12) and the transfer device (9) is provided is, wherein the wedge member (21) preferably between an upper position corresponding to the lower position of the switch element (12) and a lower position corresponding to an upper position of the switch element (12) displaceable, in particular pivotable, is. 12. Device (1) according to one of claims 9 to 11, characterized in that an upper conveyor drive (22), in particular with at least one conveyor belt (23) for transporting the tubular bag body (2) on the upper conveying surface (19) between the switch element (12) and the upper support surface (10) and / or a lower conveyor drive (24), in particular with at least one further conveyor belt (25), for transporting the tubular bag body (2) on the lower conveying surface (20) between the switch element (12) and the lower support surface (11) of the transfer device (9) is provided. 13. Device (1) according to one of claims 1 to 12, characterized in that the upper bearing surface (10) and the lower bearing surface (11) of the transfer device (9) via an upper (26) and a lower merge section (27) a common transverse transport plane of the transverse transport device (8) are connected. 14. Device (1) according to claim 13, characterized in that the upper merging section (26) and / or the lower merging section (27) are each arranged at an obtuse angle to the transport plane of the transverse transport device (8). 15. Device (1) according to one of claims 1 to 14, characterized in that a separating device (5) for separating the tubular bag body (2) is provided. 16. Device (1) according to claim 15, characterized in that as a separating device (5) a cross-cutting device for cutting a tubular material web transversely to the longitudinal transport direction (3 ') is provided. 17. Device (1) according to one of claims 1 to 16, characterized in that an opening device for forming a bottom opening between bag sections at the open end region of the tubular bag body (2) is provided. 18. A method for transporting tubular bag bodies (2), wherein the tubular bag body (2) initially transported substantially in the direction of its longitudinal extension and fed to a support surface, wherein the tubular bag body (2) transported away from the support surface substantially perpendicular to the longitudinal extent thereof be, characterized in that the tubular bag body (2) by converting a switch element (12) an upper support surface (10) and a lower support surface (11) are supplied, of which the tubular bag body (2) in the transverse transport direction (8 ') in Substantially transported away perpendicular to its longitudinal extent. 19. The method according to claim 18, characterized in that the tubular bag body (2) alternately the upper support surface (10) and the lower support surface (11) are supplied.